[Solved] Jay often wakes up with an erection and sometimes experiences erections throughout the night. What is the most likely reason for this? A) Jay looks at porn before falling asleep which causes erotic dreams. B) Jay's REM cycles occur throughout the night and right before he wakes up. C) Jay drinks too much fluid before going to bed which causes the need to urinate and pressure in his penis. D) Jay does not masturbate frequently enough to release built-up amounts of semen. Lateral Geniculate Pathway: null Suprachiasmatic Nucleus: A small region of the brain in the hypothalamus, responsible for controlling circadian rhythms. Optic Chiasm: Junction of the optic nerves, one from each eye, at which the axons from the nasal halves of the retinas cross to the brain’s opposite side. Hypothalamus: A region of the brain that regulates vital bodily functions, including temperature, hunger, thirst, fatigue, sleep, and circadian rhythms.